STAR HardProbes PWG

[Nihar Sahoo <nihar AT rcf.rhic.bnl.gov>]

Hello Rongrong,

I don't know if theorist who did this calculation knows about this 
reason at low pT.
If they don't know and it is an interest for the community, then we 
should point this out and mention it clearly.
Just I don't want to drag this discussion. It is up to PAs how to show 
theory curves, as it is not a discussion on STAR data.


Cheers
Nihar



On 2023-09-03 21:36, Ma, Rongrong wrote:
> Hello Nihar
>
> I am not sure if it is a good idea to show the curve at low pT since
> we know what's missing. It will look bad for the theorists (which I am
> not sure is what we want) and it does not really add much physics
> discussion since it is well known that charm hadron chemistry changes
> in heavy ion collisions.
>
> Thanks.
>
> Best
> Rongrong
>
> > On Sep 3, 2023, at 11:55 AM, Nihar Sahoo via Star-hp-l 
> > <star-hp-l AT lists.bnl.gov> wrote:
> >
> > Hello Yuan,
> >
> > Ok, Then we should show whole pT range and mention this in the slide.
> > People should know about it which is an important physics of charm 
> > hadronization at low pT.
> > This should be pointed out as a caveats of this model calculation.
> >
> > Not showing full pT range theory curve may not be a good idea for us.
> >
> > Cheers
> > Nihar
> >
> >
> > On 2023-09-03 20:40, suyuann AT mail.ustc.edu.cn wrote:
> > > Hi Nihar,
> > >  Thanks for your the comment. The total number of charm is conserved.
> > > The enhancement of Lambda_c and Ds have been observed in AuAu
> > > collisions. That means more charm quarks are used to form Lambda_c 
> > > and
> > > Ds, then less charm will be used for D0. This charm hadronization
> > > mechanism is consistent with a suppression of D0 yield at low pt. But
> > > the model doesn't include this charm hadrochemistry. so now we focus
> > > on the high p_T process.
> > > Best regrads,
> > > Yuan
> > > > -----Original Messages-----
> > > > From: "Nihar Sahoo" <nihar AT rcf.rhic.bnl.gov>
> > > > Sent Time: 2023-09-03 18:13:50 (Sunday)
> > > > To: suyuann AT mail.ustc.edu.cn
> > > > Cc: "STAR HardProbes PWG" <star-hp-l AT lists.bnl.gov>, 
> > > > webmaster AT star.bnl.gov
> > > > Subject: Re: [Star-hp-l] STAR presentation by Yuan Su for Quark 
> > > > Matter 2023 submitted for review
> > > > Hello Yuan,
> > > > Your current version looks good now.
> > > > I have one comment on your slide3 and 10,
> > > > Slide 10 figure has theory curves starting from pT > 4 GeV.
> > > > Is there any reason for this change? Whereas you have plot with AuAu
> > > > theory curves up to 0 GeV.
> > > >  Probably I missed this discussion.
> > > > Cheers
> > > > Nihar
> > > > On 2023-08-30 03:46, suyuann AT mail.ustc.edu.cn wrote:
> > > > > Dear Nihar,
> > > > >  Thank you for your nice comments. I’ve implemented all of them,
> > > > > please find the updated version here:
> > > > >  https://drupal.star.bnl.gov/STAR/system/files/QM_2023_0829.pdf
> > > > >
> > > > > Best regards,
> > > > > Yuan
> > > > >
> > > > >> -----Original Messages-----
> > > > >> From: "Nihar Sahoo via Star-hp-l" <star-hp-l AT lists.bnl.gov>
> > > > >> Sent Time: 2023-08-28 15:51:54 (Monday)
> > > > >> To: "STAR HardProbes PWG" <star-hp-l AT lists.bnl.gov>
> > > > >> Cc: "Nihar Sahoo" <nihar AT rcf.rhic.bnl.gov>, webmaster AT star.bnl.gov
> > > > >> Subject: Re: [Star-hp-l] STAR presentation by Yuan Su for Quark Matter
> > > > >> 2023 submitted for review
> > > > >>
> > > > >> Dear Yuan,
> > > > >>
> > > > >> Thank you for posting your nice slides.
> > > > >> I have following comments on your slides.
> > > > >>
> > > > >> No need to make text as red color for your interest.
> > > > >>
> > > > >> Slide 3:
> > > > >> _ "A significant energy loss of charm quarks in isobar collisions?" ->
> > > > >> sounds like you have already know the conclusion.
> > > > >>
> > > > >>     How about combing last two bullets
> > > > >> "What is the charge quark energy loss and binary collision scaling in
> > > > >> Isobar collisions?"
> > > > >>
> > > > >> Slide4:
> > > > >>
> > > > >> _ Title: Charm jets tagged with D^0 mesons -> Simply  " D^0 tagged jet
> > > > >> in heavy-ion collisions"
> > > > >>
> > > > >> _ Definition of Z; please check with what Diptanil has used in his
> > > > >> poster. Use the same notations.
> > > > >>
> > > > >> _ "A significant suppression of D0 tagged jet yield with lower D0
> > > > >> kinematics at RHIC energies? " -> Remove this bullet. Not needed to
> > > > >> say
> > > > >> anything.
> > > > >>
> > > > >> _ Make "radial distribution of the D^0" expression a bit bigger and
> > > > >> move
> > > > >> it up so that people can see from distance.
> > > > >>
> > > > >> Slide5:
> > > > >> "A diffusion of charm quarks at lower pT in Au+Au collisions at sNN =
> > > > >> 200 GeV?" -> It is not clear where do you get it. I think it is not
> > > > >> needed. Just go to your results in 15min talk. In QM, people want to
> > > > >> see
> > > > >> the results assuming they are aware of motivation.
> > > > >>
> > > > >> _"Contribution from the underlying background is small at RHIC" This
> > > > >> is
> > > > >> not absolutely correct. And not clear what underlying background you
> > > > >> are
> > > > >> talking. So better to remove or rephrase this.
> > > > >>
> > > > >> _In this slide important is to highlight the kienematic range of D^0
> > > > >> that you are going to show: 1 - 10 GeV/c; That you mentioned at the
> > > > >> bottom that no one will notice. Make it bigger and highlight somewhere
> > > > >> up.
> > > > >>
> > > > >> Slide7:
> > > > >> combination background -> combinatoric background
> > > > >>
> > > > >>
> > > > >> Slide8:
> > > > >> _Suggestion: Less wording is better. Try to clean it up and make a
> > > > >> concise phrase or sentence
> > > > >> _ VS -> vs [and elsewhere]
> > > > >>
> > > > >>
> > > > >> You can bring slide4 and 5 before Slide12, so that you can tell people
> > > > >> what you are going to tell next.
> > > > >> Make 1-10 GeV/c kinematic slide in bold text on each slides.
> > > > >>
> > > > >> Slide12:
> > > > >> I hope you will speak a sentence on "LIDO" comparison .
> > > > >>
> > > > >> Cheers
> > > > >> Nihar
> > > > >>
> > > > >>
> > > > >> On 2023-08-28 10:53, webmaster--- via Star-hp-l wrote:
> > > > >> > Dear Star-hp-l AT lists.bnl.gov members,
> > > > >> >
> > > > >> > Yuan Su (suyuann AT mail.ustc.edu.cn) has submitted a material for a
> > > > >> > review,
> > > > >> > please have a look:
> > > > >> > https://drupal.star.bnl.gov/STAR/node/64968
> > > > >> >
> > > > >> > Deadline: 2023-09-03
> > > > >> > ---
> > > > >> > If you have any problems with the review process, please contact
> > > > >> > webmaster AT www.star.bnl.gov
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